2chapter38

Digestion and the Excretory System

Period 2

Faroz Zaman

Norman Zhu

The Mouth The mouth is the

first part of the digestive system.

The two parts of the mouth that help digestion are the salivary glands and teeth.

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Norman Zhu

The Esophagus The esophagus is

what transfers bolus from the mouth to the stomach using peristalsis.

At the bottom of the esophagus is the cardiac sphincter.

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Norman Zhu

The Stomach

Chemical Digestion Mechanical Digestion Ulcers

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Norman Zhu

The Pancreas and Liver

Liver

Pancreas

Duodenum

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Norman Zhu

The Small Intestine

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Norman Zhu

The Large Intestine The main job of the large intestine is to

absorb water. Diarrhea Vitamin K

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Faroz Zaman

Excretion Skin Lungs Kidneys

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Faroz Zaman

The Kidneys Located on both

sides of the lower back

Kidney Structure Filtration Reabsorption and

Secretion Blood water content

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Homeostasis by Machine A patient with

diseased kidneys can be kept alive by the use of a machine.

Artificial Kidneys

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Faroz Zaman